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Green Energy & Environment 2025年第1期10卷 161-172页

作者： Meng-Ying liu zhe-Hui Zhang Xue-Qi Wang Qian Sun Chen Zhang Yu li Zhuohua Sun Katalin Barta Feng Peng Tong-Qi Yuan State Key laboratory of Efficient Production of Forest Resources Beijing Forestry UniversityBeijing100083China Beijing Key laboratory of lignocellulosic Chemistry Beijing Forestry UniversityBeijing100083China Department of Chemistry Organic and Bioorganic ChemistryUniversity of GrazHeinrichstrasse 28/II8010 GrazAustria

Developing a cost-effective and environmentally friendly process for the production of valuable chemicals from abundant herbal biomass receives great attentions in recent ***,taking advantage of the“lignin first”strategy,corn straw is converted to valuable chemicals including lignin monomers,furfural and 5-methoxymethylfurfural via a two steps *** key of this research lies in the development of a green and low-cost catalytic process utilizing magnetic Raney Ni catalyst and high boiling point ethylene *** utilization of neat ethylene glycol as the sole slovent under atmospheric conditions obviates the need for additional additives,thereby facilitating the entire process to be conducted in glass flasks and rendering it highly convenient for scaling *** the initial step,depolymerization of corn straw lignin resulted in a monomer yield of 18.1 wt%.Subsequently,in a dimethyl carbonate system,the carbohydrate component underwent complete conversion in a one-pot process,yielding furfural and 5-methoxymethylfurfural as the primary products with an impressive yield of 47.7%.

关键词： Atmospheric reductive catalytic fractionation Corn straw Ethylene glycol Raney Ni 5-Methoxymethylfurfural

Retrospective analysis of delta hemoglobin and bleeding-related risk factors in pancreaticoduodenectomy

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World Journal of Gastrointestinal Surgery 2025年第3期17卷 229-239页

作者： Yi-Min lin Chao Yu Guo-zhe Xian Department of Hepatobiliary Surgery Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250021Shandong ProvinceChina Department of Emergency Surgery Affiliated Hospital of Shandong University of Traditional Chinese MedicineJinan 250011Shandong ProvinceChina

BACKGROUND Objective and accurate assessment of blood loss during pancreaticoduodenectomy(PD)is crucial for ensuring the safety and efficacy of the *** the visual method remains the most common clinical metric,many scholars argue that it significantly differs from actual blood loss and is inherently *** To assess blood loss in PD via delta hemoglobin(ΔHb)and compare it with the visual method to predict bleeding-related risk *** In this retrospective analysis,1722 patients who underwent PD from 2017 to 2022 at Shandong Provincial Hospital were divided into three groups:Open PD(OPD),laparoscopic PD(lPD),and conversion to OPD(CTOPD).IntraoperativeΔHb(IΔHb)was calculated via preoperative and 72-hour-postoperative hemoglobin concentrations,and its association with visually obtained estimated blood loss(EBl)was ***ΔHb(PΔHb)was calculated via preoperative and predischarge hemoglobin *** compared the differences in IΔHb and PΔHb among the three groups,and performed univariate and multi-variate regression analyses of IΔHb and PΔ*** The preoperative general information of patients showed no statistically si-gnificant difference among the three groups(P>0.05).The IΔHb in the OPD,lPD,and CTOPD groups were 22.00(12.00,36.00),21.00(10.00,33.00),and 33.00(18.12,52.24)g/l,respectively;And the PΔHb in the OPD,lPD,and CTOPD groups were 25.87(13.51,42.00),25.00(14.00,45.00),and 37.48(21.64,59.65)g/l,respectively,values significantly differed(Pl were significantly correlated(r=0.337,Plts of univariate and multivariate regression analyses indicated that American Society of Anesthesiologists(ASA)classification IV[95%confidence interval(CI):2.330-37.811,P=0.049]and preoperative total bilirubin>200μmol/l(95%CI:2.805-8.673,Plassification IV(95%CI:45.934-105.485,P24 kg/m2(95%CI:1.285-9.890,P=0.011),

关键词： Pancreaticoduodenectomy Delta hemoglobin Estimated blood loss Postpancreatectomy hemorrhage Risk factor

A Novel Photocleaver with long Wavelength Absorption-Highly Efficient Antitumor Agent: 4-(2-Diethylamino-ethylamino)-8-oxo-8H-acenaphtho-[1,2-b]pyrrole-9-carbonitrile

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Chemical Research in Chinese Universities 2005年第4期21卷 480-483页

作者： ZHANGZhi-chao l.zhe QIANXu-hong SHENGHui StateKeylaboratoryofFineChemicals DalianUniversityofTechnologyDalian116012P.R.China TheFirstClinicalHospital JilinUniversityChangchun130021P.R.China

The photocleavage abilities of a novel family of compounds, 8-oxo-8%H%-acenaphtho pyrrole-9-carbonitrile and its derivatives(compounds 1—5) were evaluated with M13 mp18 single strand circular DNA. Only compound 1 with a diethylamine group could bind to DNA %via% electrostatic attraction and intercalation. At a concentration of 50 μmol/l, it could generate singlet oxygen to cleave circular DNA into linear DNA under the irradiation of long wavelength light(λ>400 nm). The antitumor {ability} of compound 1 was also evaluated in vitro, and its IC_ 50 on Hela cells was as low as 6.8 μmol/l.

关键词： Photocleaver 8-Oxo-8H-acenaphtho[1,2-b]pyrrole-9-carbonitrile Singlet oxygen Cytotoxicity

Boosting oxygen reduction activity and CO_(2) resistance on bismuth ferrite-based perovskite cathode for low-temperature solid oxide fuel cells below 600℃

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Journal of Energy Chemistry 2024年第3期90卷 600-609,I0013页

作者： Juntao Gao Zhiyun Wei Mengke Yuan zhe Wang zhe lü Qiang li lingling Xu Bo Wei School of Physics Harbin Institute of TechnologyHarbin 150001HeilongjiangChina Key laboratory of Functional Inorganic Material Chemistry Ministry of EducationSchool of Chemistry and Materials ScienceHeilongjiang UniversityHarbin 150080HeilongjiangChina School of Physics and Electronic Engineering Harbin Normal UniversityHarbin 150025HeilongjiangChina

Developing efficient and stable cathodes for low-temperature solid oxide fuel cells(lT-SOFCs) is of great importance for the practical ***,we propose a series of Sm-modified Bi_(0.7-x)Sm_xSr_(0.3)FeO_(3-δ) perovskites as highly-active catalysts for *** doping can significantly enhance the electrocata lytic activity and chemical stability of *** 600℃,Bi_(0.675)Sm_(0.025)Sr_(0.3)FeO_(3-δ)(BSSF25) cathode has been found to be the optimum composition with a polarization resistance of 0.098 Ω cm^2,which is only around 22.8% of Bi_(0.7)Sr_(0.3)FeO_(3-δ)(BSF).A full cell utilizing BSSF25 displays an exceptional output density of 790 mW cm^(-2),which can operate continuously over100 h without obvious *** remarkable electrochemical performance observed can be attributed to the improved O_(2) transport kinetics,superior surface oxygen adsorption capacity,as well as O_(2)p band centers in close proximity to the Fermi ***,larger average bonding energy(ABE) and the presence of highly acidic Bi,Sm,and Fe ions restrict the adsorption of CO_(2) on the cathode surface,resulting in excellent CO_(2) *** work provides valuable guidance for systematic design of efficient and durable catalysts for lT-SOFCs.

关键词： low-temperature solid oxide fuel cell Perovskite cathode DFT calculations CO_(2) tolerance

Novel medium entropy perovskite oxide Sr(FeCoNiMo)_(1/4)O_(3−δ)for zinc-air battery cathode

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Journal of Energy Chemistry 2024年第9期96卷 669-678页

作者： Kaixin li Juntao Gao Xu Han Qi Shao zhe lü School of Physics Harbin Institute of TechnologyHarbin 150001HeilongjiangChina Heilongjiang Provincial Key laboratory of Advanced Quantum Functional Materials and Sensor Components Harbin 150001HeilongjiangChina

It is widely recognized that the development of ZABs is impeded by the kinetic bottleneck of oxygen evolution reaction(OER)and oxygen reduction reaction(ORR).The application of conformational entropy strategy to oxides often involves introducing multiple elements with different properties,thereby providing outstanding bifunctional catalytic activity for OER/***,the possible underlying catalytic pathways and potential interactions between various components are still poorly *** paper presents an excellent medium-entropy perovskite oxide,Sr(FeCoNiMo)_(1/4)O_(3−δ)(lower overpotential of 301 mV at 10 mA cm^(−2)).Zinc-air batteries employing it as a cathode catalyst demonstrate excellent round-trip efficiency(62%).By combining theoretical calculation with experiments,we aim to establish the link between the electronic structure of perovskite oxides with different elemental compositions and their OER *** reveals that the conformational entropy strategy can simultaneously shift the O 2p-band center and metal d-band center of perovskite oxide towards the vicinity of the Fermi energy level,thereby triggering a more favorable lattice oxygen-participated mechanism(lOM)during the OER *** outcomes of this work provide crucial insights into the role of conformational entropy strategies in oxygen catalysis and offer potential avenues for constructing efficient and stable electrocatalysts.

关键词： Sr(FeCoNiMo)_(1/4)O_(3−δ) Bifunctional catalyst Medium entropy lOM Rechargeable zinc-air batteries

Effect of relative humidity on the desulfurization performance of calcium-based desulfurizer

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Journal of Environmental Sciences 2024年第4期138卷 179-188页

作者： Juan lǖ Yu Fu Haiyan Yu HuanWang zhe Wang Haiyan Chen School of Environment and Resource Southwest University of Science and TechnologyMianyang 621010China Guangyuan Emergency Management bureau Guangyuan 628000China

low desulfurization efficiency impedes the wide application of dry desulfurization technology,which is a low-cost and simple process,and one significant solution is the development and manufacture of high-performance *** this study,firstly,a steam jet mill was used to digest quicklime;then,we utilized numerical simulation to study the flow field distribution and analyze the driving factors of quicklime digestion;and lastly,the desulfurization performance of the desulfurizer was evaluated under different relative *** results show that the desulfurizer prepared via the steam jet mill had better apparent activity than traditional ***,the entire jet flow field of the steam jet mill is in a supersonic and highly turbulent flow state,with high crushing intensity and good particle acceleration *** contact with the nascent surface maximizes the formation of slaked *** experiments demonstrated that the operating time with 100%desulfurization efficiency and the“break-through”time for the desulfurizer prepared via the steam jet mill is longer than that of traditional desulfurizers,and has significant advantages,especially at low flue gas relative *** with traditional desulfurizers,the desulfurizer prepared via steam jet mill expands the range of acceptable flue gas temperature,and the failure temperature is 1.625 times that of traditional *** work breaks through the technical bottleneck of low dry desulfurization efficiency,which is an important step in pushing forward the application of dry desulfurization.

关键词： Dry desulfurization Relative humidity Desulfurization efficiency High-efficiency desulfurizer Quicklime digestion

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基于自捻纺的嵌入式低扭矩复合纱性能分析

纺织学报 2025年第2期46卷 78-85页

作者：张瑞成张文清吕哲许多刘可帅徐卫林武汉纺织大学纺织科学与工程学院湖北武汉430200 武汉纺织大学纺织新材料与先进加工技术全国重点实验室湖北武汉430200

为解决复合纱捻度高、残余扭矩大、扭结较多的问题,采用羊毛纤维、锦纶长丝为原料,结合自捻纺纱与低扭矩纺纱技术,制备了嵌入式同相自捻纱和异相自捻纱,对同相自捻纱进行受力分析,探究了嵌入长丝的角度/间距对复合自捻纱自捻扭矩的影响... 详细信息

为解决复合纱捻度高、残余扭矩大、扭结较多的问题,采用羊毛纤维、锦纶长丝为原料,结合自捻纺纱与低扭矩纺纱技术,制备了嵌入式同相自捻纱和异相自捻纱,对同相自捻纱进行受力分析,探究了嵌入长丝的角度/间距对复合自捻纱自捻扭矩的影响,分析了长丝与粗纱在不同间距下对2种自捻纱成纱性能的影响。结果表明:嵌入式异相自捻纱性能普遍优于同相自捻纱;随着长丝与粗纱间距增大,长丝包缠角度变大,对短纤维的束缚作用增强,提高了纤维强度利用率和成纱均匀度;当长丝与粗纱间距过大时,长丝对短纤维内外转移的调控作用减弱,纤维间抱合力减小,条干均匀度恶化;在2 mm间距时嵌入式自捻纱综合性能更优,异相自捻纱与同相自捻纱的断裂强度分别为9.79和6.63 cN/tex,条干CV值分别为19.16%和20.93%,3 mm毛羽数量分别为119根/(10 m)和102根/(10 m);嵌入式自捻纱充分利用长丝连续性和受力均匀性平衡退捻力矩,有效降低了复合纱线的残余扭矩(≤1个扭结/(25 cm))。

关键词：自捻纺嵌入式复合纱低扭矩纱线结构模型纱线性能

Electrochemical performance of la_(2)NiO_(4+δ)-Ce_(0.55)la_(0.45)O_(2−δ)as a promising bifunctional oxygen electrode for reversible solid oxide cells

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Journal of Advanced Ceramics 2021年第2期10卷 328-337页

作者： Pengzhang li Wei Yang Chuanjin Tian Wenyan Zhao zhe lü Zhipeng Xie Chang-An Wang School of Materials Science and Engineering Jingdezhen Ceramic InstituteJingdezhen333403China School of Physics Harbin Institute of TechnologyHarbin150001China State Key laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing100084China

In this work,la_(2)NiO_(4+δ)-Ce_(0.55)la_(0.45)O_(2−δ)(denoted as lNO-xlDC)with various lDC contents(x=0,10,20,30,and 40 wt%)were prepared and evaluated as bifunctional oxygen electrodes for reversible solid oxide cells(RSOCs).Compared with the pure lNO,the optimum composition of lNO-30lDC exhibited the lowest polarization resistance(Rp)of 0.53 and 0.12Ω·cm^(2)in air at 650 and 750℃,*** enhanced electrochemical performance of lNO-30lDC oxygen electrode was mainly attributed to the extended triple phase boundary and more oxygen ionic transfer *** hydrogen electrode supported single cell with lNO-30lDC oxygen electrode displayed peak power densities of 276,401,and 521 mW·cm^(−2)at 700,750,and 800℃,***,the electrolysis current density of the single cell demonstrated 526.39 mA·cm^(−2) under 1.5 V at 800℃,and the corresponding hydrogen production rate was 220.03 ml·cm^(−2)·h^(−1).The encouraging results indicated that lNO-30lDC was a promising bifunctional oxygen electrode material for RSOCs.

关键词： la_(2)NiO_(4+δ)(lNO) oxygen electrode electrochemical performance reversible solid oxide cells(RSOCs)

Features and factors of radium isotopes in Tianjin’s typical estuaries

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Acta Oceanologica Sinica 2023年第8期42卷 134-146页

作者： zhe Zhang Yingchun Dong lixin Yi Xin Hao Yajie zheng Tianxue lü College of Environmental Science and Engineering Nankai UniversityTianjin 300350China

In order to characterize the features of radium isotopes in estuaries of Tianjin,a continuous survey and sampling of typical estuaries were conducted from 2013 to 2017 in this *** activities of natural radioactive radium isotopes(^(223)Ra,^(224)Ra,and ^(228)Ra)in groundwater and surface water were measured by the radium-delayed coincidence counting(RaDeCC)*** non-conservative behavior of the radium isotopes was investigated under hydrogeochemical conditions and *** results indicated that in terms of horizontal distribution,the activities of radium in groundwater(Hangu,Tanggu,and Dagang)showed an upward trend from north to south and demonstrated a higher figure than surface water(Haihe River and Duliujian River).Concerning the vertical distribution,the activitives of radium at a 15 m burial depth was higher than that at a 30 m burial depth in all *** activities of radium isotopes in the study area increased with the increase of total dissolved solids,and their desorption behavior on Fe-Mn oxides was constrained by the redox *** hydrogeological conditions resulted in variations in the vertical profile of radium *** activity of radium was regulated by seasonal variation and precipitation in groundwater and surface *** addition,the rapid urbanization has caused a significant impact on the features of radium isotopes in typical estuaries of ***,radium isotopes can be applied to reflect the impact of urbanization on surface watergroundwater *** and cleverly utilizing the relationship between behavior of radium isotopes and urbanization will promote the development of the Tianjin Binhai New Area in a healthy way.

关键词： estuary radium isotope total dissolved solids ionic strength urbanization

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基于沟槽结构优化的轴流泵水力性能提升研究

农业机械学报 2025年第1期56卷 321-331+355页

作者：牟童徐辉费照丹冯建刚丁哲王东升河海大学农业科学与工程学院河海大学水利水电学院河海大学水科学研究院

轴流泵在小流量工况下运行时，由于进流速度较低且存在壁面回流，会导致水力性能劣化，产生严重的机组振动，威胁泵站的安全稳定运行。沟槽流动控制技术是一种有效改善轴流泵水力性能的方法，其结构参数对水力性能的影响关系目前尚不明... 详细信息

轴流泵在小流量工况下运行时，由于进流速度较低且存在壁面回流，会导致水力性能劣化，产生严重的机组振动，威胁泵站的安全稳定运行。沟槽流动控制技术是一种有效改善轴流泵水力性能的方法，其结构参数对水力性能的影响关系目前尚不明确。运用数值模拟方法，通过改变重要几何参数对沟槽结构进行了改型设计，研究轴流泵沟槽结构参数单因素及多因素变量对轴流泵深度失速工况下的水力性能影响，并运用响应曲面法对沟槽结构参数进行了优化设计。研究结果表明，沟槽尾部距离、沟槽深度和沟槽宽度3个参数中，沟槽尾部距离对轴流泵水力性能和内部流场的影响最明显，轴流泵沟槽关键几何参数最优参数组合为：沟槽深度h为0.022倍叶轮直径；槽宽W为0.088倍叶轮直径；沟槽尾部距离l2为0.106倍叶轮直径。研究结果可为沟槽流动控制技术在轴流泵装置设计和运行提供有效支撑。

关键词：轴流泵水力性能沟槽流动控制优化设计